Power and Communications Cable for Coiled Tubing Operations

    公开(公告)号:US20180374607A1

    公开(公告)日:2018-12-27

    申请号:US16007668

    申请日:2018-06-13

    摘要: Systems and methods of the disclosed embodiments may include a coiled tubing locatable in a wellbore, a power and communications cable positioned along the coiled tubing. The power and communications cable may include an electromagnetic waveguide, an inner metallic tubular surrounding the electromagnetic waveguide, an electrically conductive material surrounding the inner metallic tubular, an electrically insulating material surrounding the electrically conductive material, and an outer metallic tubular resistant to corrosion and abrasion surrounding the electrically insulating layer. The example system may include an electrical device locatable in the wellbore and coupleable to the cable and a control unit coupleable to the cable and operable to supply power to and communicate with the electrical device via the power and communications cable.

    Hybrid electro-optic wireline cable

    公开(公告)号:US11366275B2

    公开(公告)日:2022-06-21

    申请号:US16585543

    申请日:2019-09-27

    摘要: A hybrid electro-optic (EO) wireline cable includes optical fibers strategically placed within to allow acoustic sensing methods as well as provide power and electrical telemetry. The hybrid EO wireline cable contains optical fibers in the interstices among symmetrically arranged electrical wire bundles to allow a hybrid EO cable to be concurrently used for electrical telemetry and optical fiber sensing without interference in a wellbore environment. This hybrid EO cable maintains electric and magnetic field symmetry which allows an optimal electrical signaling rate through orthogonal propagation modes. By placing optical fibers symmetrically inside the interstitial spaces between electrical wire bundles, the cable maintains its optimal signaling rate and avoids the mechanical and electrical limitations that would be introduced when combining electrical wires and optical fibers in a wireline cable.

    Power and Communications Cable for Coiled Tubing Operations

    公开(公告)号:US20200211735A1

    公开(公告)日:2020-07-02

    申请号:US16812469

    申请日:2020-03-09

    摘要: Systems and methods of the disclosed embodiments may include a coiled tubing locatable in a wellbore, a power and communications cable positioned along the coiled tubing. The power and communications cable may include an electromagnetic waveguide, an inner metallic tubular surrounding the electromagnetic waveguide, an electrically conductive material surrounding the inner metallic tubular, an electrically insulating material surrounding the electrically conductive material, and an outer metallic tubular resistant to corrosion and abrasion surrounding the electrically insulating layer. The example system may include an electrical device locatable in the wellbore and coupleable to the cable and a control unit coupleable to the cable and operable to supply power to and communicate with the electrical device via the power and communications cable.

    Direct drive for a reservoir fluid pump

    公开(公告)号:US12049819B2

    公开(公告)日:2024-07-30

    申请号:US17612304

    申请日:2019-07-08

    摘要: The disclosure provides a formation fluid pumping method and pump, and a wellbore system that in one example includes wellbore surface equipment connected to a downhole tool including a formation fluid container having a fluid input port and a fluid output port, and a moveable piston inside the formation fluid container having two fluid chambers positioned to alternately pump a quantity of formation fluid in the formation fluid container from the fluid input port to the fluid output port. The wellbore system further includes a mechanical piston actuator having a rotary portion attached to the formation fluid container and a linear portion attached to the moveable piston, and a brushless direct current motor coupled to the rotary portion of the mechanical piston actuator and controlled to alternately rotate the rotary portion of the mechanical piston actuator in opposite directions to pump the quantity of formation fluid.

    DIRECT DRIVE FOR A RESERVOIR FLUID PUMP

    公开(公告)号:US20220228485A1

    公开(公告)日:2022-07-21

    申请号:US17612304

    申请日:2019-07-08

    IPC分类号: E21B49/08 E21B47/06 F04B9/02

    摘要: The disclosure provides a formation fluid pumping method and pump, and a wellbore system that in one example includes wellbore surface equipment connected to a downhole tool including a formation fluid container having a fluid input port and a fluid output port, and a moveable piston inside the formation fluid container having two fluid chambers positioned to alternately pump a quantity of formation fluid in the formation fluid container from the fluid input port to the fluid output port. The wellbore system further includes a mechanical piston actuator having a rotary portion attached to the formation fluid container and a linear portion attached to the moveable piston, and a brushless direct current motor coupled to the rotary portion of the mechanical piston actuator and controlled to alternately rotate the rotary portion of the mechanical piston actuator in opposite directions to pump the quantity of formation fluid.